package com.heima.kafka.sample;


import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.clients.producer.ProducerRecord;

import java.util.Properties;

/**
 * 生产者
 */
public class ProducerQuickStart {
    public static void main(String[] args) {
        // kafka配置信息
        Properties properties = new Properties();
        // kafka的连接地址
        properties.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "192.168.200.130:9092");
        // 发送失败，失败的重试次数
        properties.put(ProducerConfig.RETRIES_CONFIG, 5);
        // 消息key的序列化器
        properties.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
        // 消息value的序列化器
        properties.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
        // 生产者对象
        KafkaProducer<String, String> producer = new KafkaProducer<String, String>(properties);
        // 发送的信息
        ProducerRecord<String, String> record = new ProducerRecord<String, String>("itheima-topic","100001","hello kafka");
        // 发送信息
        producer.send(record);
        // 关闭消息通道必须关闭，否则信息发送失败
        producer.close();
    }
}
